RSSHub/lib/v2/bjfu/it/utils.js

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const got = require('@/utils/got');
const cheerio = require('cheerio');
const iconv = require('iconv-lite'); // 转码
const { parseDate } = require('@/utils/parse-date');
const timezone = require('@/utils/timezone');
// 完整文章页
async function load(link) {
const response = await got.get(link, {
responseType: 'buffer',
});
const data = iconv.decode(response.data, 'gb2312'); // 转码
// 加载文章内容
const $ = cheerio.load(data);
// 解析日期
const pubDate = timezone(
parseDate(
$('.template-head-info')
.text()
.match(/\d{4}-\d{2}-\d{2}/)
),
+8
);
// 提取内容
const description = $('.template-body').html();
// 返回解析的结果
return { description, pubDate };
}
const ProcessFeed = async (base, list, caches) =>
// 使用 Promise.all() 进行 async 并发
await Promise.all(
// 遍历每一篇文章
list.map(async (item) => {
const $ = cheerio.load(item);
const $title = $('a');
// 还原相对链接为绝对链接
const itemUrl = new URL($title.attr('href'), base).href; // 感谢@hoilc指导
// 列表上提取到的信息
const single = {
title: $title.text(),
link: itemUrl,
author: '北林信息',
guid: itemUrl,
};
// 使用tryGet方法从缓存获取内容。
// 当缓存中无法获取到链接内容的时候则使用load方法加载文章内容。
const other = await caches.tryGet(itemUrl, async () => await load(itemUrl));
// 合并解析后的结果集作为该篇文章最终的输出结果
return { ...single, ...other };
})
);
module.exports = {
ProcessFeed,
};